Method and system for detecting acute myocardial infarction

Details Method and system for detecting acute myocardial infarction Method and system for detecting acute myocardial infarction

1997-01-09

1998-08-11

Kamm, William E.

Surgery

Diagnostic testing

Cardiovascular

A61B 50452

Patent

active

057920664

ABSTRACT:
A method and system for determining Acute Myocardial Infarction. The method and system work by determining whether or not at least one pre-specified component wave is present within each successive heartbeat waveform (e.g. the S wave component of the QRSTU waveform) appearing within each electrocardiographic lead. After it has been determined whether or not the pre-specified component wave is present within the heartbeat waveforms under consideration (each lead will generally have some representation of each successive heartbeat waveform present within it), a wave amplitude ratio (e.g. the ST complex amplitude divided by the S wave component amplitude at some specified instant in time) is calculated. Thus, for each successive heartbeat waveform there will generally be at least one wave amplitude ratio calculated for each electrocardiographic lead, since the same heartbeat waveform generally appears, in some form, within each electrocardiographic lead. Finally, the calculated wave amplitude ratios, which are generally calculated on each lead that every successive heartbeat waveform, are compared to predetermined criteria (e.g. traversing a classification tree), and on the basis of this comparison it is indicated whether Acute Myocardial Infarction is occurring.

REFERENCES:
patent: 4546776 (1985-10-01), Bellin et al.
patent: 4957115 (1990-09-01), Selker
patent: 5277188 (1994-01-01), Selker

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